of this secondary radiation. In order to study the directionality of this effect, Cerenkov designed the experimental setup illustrated in Figure 2 using a conical mirror that reflected incoming radiation against a photographic plate located above a fluid-filled vessel. Photographs of the reflected light represent cases of ordinary luminescence
A sigil (/ËsÉªdÊÉl/; pl. sigilla or sigils; from Latin sigillum seal) is a symbol used in magic. The term has usually referred to a type of pictorial signature of a demon or other entity; in modern usage, especially in the context of chaos magic, it refers to a symbolic representation of the magician's desired outcome.
A candlelight vigil or candlelit vigil is an outdoor assembly of people carrying candles, held after sunset in order to show support for a specific cause. Such events are typically held either to protest the suffering of some marginalized group of people, or in memory of the dead. In the latter case, the event is often called a candlelight memorial. A large candlelight vigil will usually have invited speakers with a public address system and may be covered by local or national media. Speakers gi